[WIP] Use WebAllowedObject for communication between App and WebView (#522)

FluentTerminal.Models/MessageIdentifiers.cs

@@ -2,24 +2,23 @@
 {
     public enum MessageIdentifiers : byte
     {
+        WriteDataMessage = 0,
         CreateTerminalRequest = 1,
-        GetAvailablePortRequest = 2,
-        GetUserNameRequest = 3,
-        ResizeTerminalRequest = 4,
-        SaveTextFileRequest = 5,
-        SetToggleWindowKeyBindingsRequest = 6,
-        TerminalExitedRequest = 7,
-        CommonResponse = 8,
-        CreateTerminalResponse = 9,
-        GetAvailablePortResponse = 10,
-        StringValueResponse = 11,
-        CheckFileExistsRequest = 12,
-        GetSshConfigFolderRequest = 13,
-        GetSshConfigFolderResponse = 14,
-        MuteTerminalRequest = 15,
-        UpdateSettingsRequest = 16,
-        GetCommandPathRequest = 17,
-        PauseTerminalOutputRequest = 18,
-        PauseTerminalOutputResponse = 19,
+        GetUserNameRequest = 2,
+        ResizeTerminalRequest = 3,
+        SaveTextFileRequest = 4,
+        SetToggleWindowKeyBindingsRequest = 5,
+        TerminalExitedRequest = 6,
+        CommonResponse = 7,
+        CreateTerminalResponse = 8,
+        StringValueResponse = 9,
+        CheckFileExistsRequest = 10,
+        GetSshConfigFolderRequest = 11,
+        GetSshConfigFolderResponse = 12,
+        MuteTerminalRequest = 13,
+        UpdateSettingsRequest = 14,
+        GetCommandPathRequest = 15,
+        PauseTerminalOutputRequest = 16,
+        PauseTerminalOutputResponse = 17,
     }
 }